AMD Radeon Pro 555X vs NVIDIA GeForce RTX 4080 Max-Q

VS

AMD Radeon Pro 555X

NVIDIA GeForce RTX 4080 Max-Q

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 12GB VRAM GeForce RTX 4080 Max Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 Max-Q 's Advantages

Released 4 years and 6 months late

Boost Clock1350MHz

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (336.0GB/s vs 94.08GB/s)

6656 additional rendering cores

Lower TDP (60W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X

1.393 TFLOPS

GeForce RTX 4080 Max Q +1338%

20.04 TFLOPS

Radeon Pro 555X

VS

GeForce RTX 4080 Max Q

Graphics Card

Jul 2018

Release Date

Jan 2023

Radeon Pro Mac

Generation

GeForce 40 Mobile

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

795 MHz

-

Boost Clock

1350 MHz

1470 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

192bit

94.08GB/s

Bandwidth

336.0GB/s

Render Config

12

Compute Units

-

SM Count

58

768

Shading Units

7424

48

TMUs

232

16

ROPs

80

-

Tensor Cores

232

-

RT Cores

58

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

48 MB

-

Theoretical Performance

14.51 GPixel/s

Pixel Rate

108.0 GPixel/s

43.54 GTexel/s

Texture Rate

313.2 GTexel/s

1393 GFLOPS

FP16 (half)

20.04 TFLOPS

1393 GFLOPS

FP32 (float)

20.04 TFLOPS

87.07 GFLOPS

FP64 (double)

313.2 GFLOPS

Board Design

75W

TDP

60W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Polaris 21

GPU Name

AD104

Polaris 21 PRO

GPU Variant

GN21-X9

GCN 4.0

Architecture

Ada Lovelace

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

4 nm

3 billion

Transistors

35.8 billion

123 mm²

Die Size

295 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.9

6.4

Shader Model

6.7

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